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US Patent: 732,858
Wrench
Patentee:
David H. Irland - Chicago, IL

USPTO Classifications:
81/111, 81/177.2, 81/374, 81/99

Tool Categories:
wrenches : pipe wrenches
wrenches : wrench adjustment types : self-adjust wrenches

Assignees:
None

Manufacturer:
Unknown

Witnesses:
A. L. Hough
E. F. Wilson
James Rott
Robert W. Stewart

Patent Dates:
Applied: Dec. 09, 1902
Granted: Jul. 07, 1903

Patent Pictures:
David H. Irland Pat. July 7, 1903
USPTO pdf tiff
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Description:
This is the first of three patents resulting in the Irland Pipe Wrench; each patent simplified the internal arrangement of the linkage between the auxiliary lever and the jaw. The others are 739,316 and 800,850.

This patent and 739,316 are conflated in British patent GB-190306270 registered March 18, 1903.

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